"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 防篡改
Case Name   : 验证超级用户对普通用户创建的数据库有CONNECT权限,而且该权限不会被收回
Create At   : 2022/3/16
Owner       : @daiguatutu
Description :
    1.设置参数并重启数据库enableseparationofduty=on
    2.创建普通用户
    3.普通用户连接,创建数据库
    4.超级用户连接新数据库
    5.普通用户连接，收回超级用户的连接权限
    6.超级用户连接新数据库
    7.清理环境
Expect      :
    1.成功
    2.成功
    3.成功
    4.成功
    5.成功
    6.成功
    7.清理环境成功
History     :
"""

import os
import unittest

from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger
from yat.test import macro


class Security(unittest.TestCase):
    def setUp(self):
        self.log = Logger()
        self.log.info(f'-----{os.path.basename(__file__)} start-----')
        self.pri_sh = CommonSH('PrimaryDbUser')
        self.constant = Constant()
        self.common = Common()
        self.u_name = 'u_security_connenct_privilege_0001'
        self.db_name = 'db_security_connenct_privilege_0001'
        self.default_value1 = self.common.show_param('enableSeparationOfDuty')

    def test_security(self):
        text = '-----step1：设置参数并重启数据库enableSeparationOfDuty=on; ' \
               'expect:成功-----'
        self.log.info(text)
        mod_msg = self.pri_sh.execute_gsguc('set',
                                            self.constant.GSGUC_SUCCESS_MSG,
                                            'enableSeparationOfDuty=on')
        self.assertTrue(mod_msg, '执行失败:' + text)
        result = self.pri_sh.restart_db_cluster()
        self.assertTrue(result, '执行失败' + text)

        text = '-----step2：创建普通用户 expect:成功-----'
        self.log.info(text)
        create_cmd = f"drop database if exists {self.db_name};" \
            f"drop user if exists {self.u_name} cascade; " \
            f"create user {self.u_name} with createdb " \
            f"password '{macro.COMMON_PASSWD}';"
        msg = self.pri_sh.execut_db_sql(create_cmd)
        self.log.info(msg)
        self.assertIn(self.constant.DROP_DATABASE_SUCCESS, msg,
                      '执行失败:' + text)
        self.assertIn(self.constant.DROP_ROLE_SUCCESS_MSG, msg,
                      '执行失败:' + text)
        self.assertIn(self.constant.CREATE_ROLE_SUCCESS_MSG, msg,
                      '执行失败:' + text)

        text = '-----step3：普通用户连接,创建数据库 expect:成功-----'
        self.log.info(text)
        sql_cmd = f"drop database if exists {self.db_name};" \
            f"create database {self.db_name};"
        connect_norm = f'-U {self.u_name} -W {macro.COMMON_PASSWD}'
        msg = self.pri_sh.execut_db_sql(sql_cmd, sql_type=connect_norm)
        self.log.info(msg)
        self.assertIn(self.constant.CREATE_DATABASE_SUCCESS, msg,
                      '执行失败:' + text)
        self.assertIn(self.constant.DROP_DATABASE_SUCCESS, msg,
                      '执行失败:' + text)

        text = '-----step4：超级用户连接新数据库 expect:连接成功-----'
        self.log.info(text)
        super_sql_cmd = f"select current_user;"
        connect_sys = f'-U {self.u_name} -W {macro.COMMON_PASSWD}'
        msg = self.pri_sh.execut_db_sql(super_sql_cmd, sql_type=connect_sys,
                                        dbname=self.db_name)
        self.log.info(msg)
        self.assertIn("1 row", msg, '执行失败:' + text)

        text = '-----step5：普通用户连接,收回超级用户的连接权限 expect:成功-----'
        self.log.info(text)
        sql_cmd = f"revoke connect on database {self.db_name} from public;"
        msg = self.pri_sh.execut_db_sql(sql_cmd, sql_type=connect_norm)
        self.log.info(msg)
        self.assertIn(self.constant.REVOKE_SUCCESS_MSG, msg, '执行失败:' + text)

        text = '-----step6：超级用户连接新数据库 expect:连接成功-----'
        self.log.info(text)
        msg = self.pri_sh.execut_db_sql(super_sql_cmd, sql_type=connect_sys,
                                        dbname=self.db_name)
        self.log.info(msg)
        self.assertIn("1 row", msg, '执行失败:' + text)

    def tearDown(self):
        self.log.info('-----step7：清理环境-----')
        text1 = '-----删除用户 expect:成功-----'
        self.log.info(text1)
        drop_cmd = f"drop database if exists {self.db_name};" \
            f"drop user if exists {self.u_name} cascade;"
        drop_msg = self.pri_sh.execut_db_sql(drop_cmd)
        self.log.info(drop_msg)

        text2 = '-----修改参数enableSeparationOfDuty为初始值 expect:成功-----'
        self.log.info(text2)
        mod_msg1 = self.pri_sh.execute_gsguc('set',
                                             self.constant.GSGUC_SUCCESS_MSG,
                                             f'enableSeparationOfDuty='
                                             f'{self.default_value1}')
        restart_res = self.pri_sh.restart_db_cluster()

        self.log.info('-----断言tearDown执行成功-----')
        self.assertIn(self.constant.DROP_DATABASE_SUCCESS, drop_msg,
                      '执行失败:' + text1)
        self.assertIn(self.constant.DROP_ROLE_SUCCESS_MSG, drop_msg,
                      '执行失败:' + text1)
        self.assertTrue(mod_msg1, '执行失败:' + text2)
        self.assertTrue(restart_res, '执行失败:' + text2)
        self.log.info(f'-----{os.path.basename(__file__)} end-----')
